Type-writing machine.



PATENTED APR. 30, 1907.

L. P. DISS.

TYPE WRITING MACHINE.

APPLIUATION FILED JAN.11. 1904.

3 SHEETS-SHEET 1.

INvENTnR. 43M245.

WITNESSES;

TTEI'RNEY No. 852,014. 7 PATENTED APR. 30, 1907. L. P. DISS.

TYPE WRITING MAGHiNE. APPLICATION FILED JAIL-11. 1904.

3 SHEETS-SHEET 2.

lilil'ililil rlsls.

Hls TTEIRNEY No. 852,014. PATENTED APR. 30, 1907. L. P. DISS. TYPE WRITING MACHINE.

APPLIUATION FILED JAN. 11. 1904.

3 SHEETS-SHEET 3.

INVENTDH:

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MT NESEESI H TTEIHNEY JUNITEIYSTATES PATENT OFFICE.

LOUIS P. DISS, or ILION, new YORK, ASSIGNOR TO WYoKoFF, SEAMANS"&

BENEDICT, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented April 30, 1907.

Application filed January 1], 1904. Serial No. 188,505.

To all whom it may concern.-

Be it known thatl, Louis P. Diss, a citi' zen of the United States, and a resident of Ilion, in the county of Herkiiner and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

My invention relates to typewriting mac ines and more especially to line spacing mechanism wherein the means for returning the carriage to its starting position imparts a position.

associated parts, viewed from the rear. Fig.1-

line space feed to the platen.

. My invention consists in certain features of construction and combinations of parts which will be fully set forth herein and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a' plan view of a typewriting mac 'ne embodying my invention, certain parts being broken away and others shown in'section and parts of the mechanism bein omitted. Fig. 2 is an elevation showing t e right-hand end of the platen and platen frame and associated parts; the parts being shown in normal position. Fig. 3 is a View similar to Fig. 2 but with the line space mechanism shown in operated Fig. 4 is an end view of the parts shown in Figs. 2 and 3, some of said parts being shown in section. Fig. 5 is an elevation ofthe letter space feed rack and some of the 6 is asectional elevation, the section being taken immediately at the left of the righthand end piece of the platen frame, the position of said platen frame being indicated by dotted lines. Fig. 7 is a viewsimilar to Fig. 6 but showing the guard for the line space ratchet wheel in a different position. Fig. 8 is a plan view of the letter space feed rack and associated parts, the portions of the carriage truck supporting the same being shown in section.

The same parts are designated by the same reference characters in the different figures of the drawin V I have s own my invention applied to a front strike ty ewriting machine, but the features of salt invention are applicable to machines of other types.

In the drawings, 1 represents the top plate of a typewriting machine and 2, the truck of truck is su ported above it by means of antifriction r lers. The truck has rearwardly extending arms 4 su porting a rail which is engaged y an antiriction roller 6 journaled on a rod 7 carried by ears 8 projectin' from the side of a bracket 9 rising from t e top plate 1 of the machine to which it is secured y screws 10. The platen frame comprises end pieces or plates 11 and 12 each formed with sleeves 13 and 14 formin openings 15 and 16 for the reception of ro s or bars rigidly secured therein and connecting the two end pieces of the laten frame together. Said end pieces also and 18 and screws 19 and '20 are threaded intoears 21 pro'ecting forward from the carriage truck, an have smooth portions upon the carriage. The carria e may be mounted avesleeves or hubs l7 which the sleeves or hubs 17 and 18 are journaled. Any suitable means may be employed for rocking the platen frame on the ivots 19 and 20 to rovide for upper and ower case writing but it has not been thought necessary to show such'means, as it constitutes no part of'my present invention. The platen 22 has a shaft 23 'ournaled in the end pieces or plates of the pfaten frame and finger wheels 24 secured to said shaft b set screws 25 threaded into the hubs 26 0 said finger wheels and engaging said shaft 23.

The type bars 27 have types 28 upon their free ends and are pivotally mounted on a type bar segment 29 fixed by means of screws 30 to cars 31 rising from the top plate 1 of the machine. When in. their normal position, the type bars rest against apad 32 supported by a segmental support 33 in a manner common in front strike typewritin machines. Arms 34 projecting in a forwar direction from the truckare connected by a bar 35, which supports the letter space or carriage scale 36, the scale co-o erating with an index 37 which is su ported by arms 38 attached to the type ar segment 29 by means of screws 39.

The carriage is drawn across the machine by means of a spring coiled Within a .d-ruin 40 around which is wound a strap 41 connected to the carriage by means of a hook 42in the usual manner. A-feed rack 43 is secured by means of screws 44 to a frame 45 carried by (not shown) controlled in the usual manner.

the truck 2. Any suitable co-operating letter space feed or escapement mechanism may be used in connection with this rack. Thus I have shown said rack engaging a pinion 46 fixed to one endof a shaft, onthe other end of which is, or may be, the escapement Wheel '54passes through and is supported by lugs 55, 56, 57,- 58 and 59 depending from-the truck 2.

- The rod 54 is rigidly secured to said truck bymeans of set screws 60 threaded into lugs 55 and 58 and engaging said rod 54. A spring 61 is coiled about the rod 54 and is. compressed between the lug 59 de-. pendingfrom the truck 2 and the lug 53 rising from the frame 45, thus pressing the frame, toward the right, as viewed in Big. 1,

' and normally pressingthe lu'g 53 intoengage- I It will be seen that merit with'the lug 58. the frame is so mounted as to be capable of oscillating about the rod 54 and that a limited independent movement between the laten frame and truck, against the tension 1 of the spring 61, is afforded. A flat spring 62 .erablyforrned v v plate 73 has f arts thereof bent around theis secured to the truck 2 by means of a head'- ed screw 63 and presses downward upon a roller 64 journaled upon'a' shouldered screw 65- threaded into a lug '66 rising from theframe 45, thus yie'lda'bly holding the feedv rack-43 into engagement with its pinion 4.6.. The downwardmotion of the spring 62 is adjustably limited by a set' screw'67 threaded through said spring and engaging the topof the truck 2 and thescrew 67 is provided with a lock nut 68 to secure it in its adjusted osi-' 'tion. At its free end the spring .62 is. ent downwardly so thatwhen the frame 45 is forced into its left-hand position relatively to the truck, .the tension of the'spring on the roller is greater than when the parts are in their normal position. P

The machine is. provided with a margin' stop of well-known construction comprising a stop piece 69 adjustably mounted on a transverse notched bar 70 and having a stop extending. therefrom.

lug or projection 71 The'bar 70 "is supported by lugs. 72 usingfrom the top plate 1,.of the, machine. (looperating with the stop 71 is a plate .73 prefofsheet metal as shown. Thev rod 54', thus forming sleeves 74" loosely surthewheel 81 is formed with ratchet tent roller 83 111 the usual manner.

' shaft rounding said'rod. I In order to preventsaid plate. 73-from-turning upon therod 54 and to support-it in horizontalv position, the dog 56 depending from the lJIHCkf'Q-dS slotted-as shown at 75 and 'thestraightedgef of the plate73 is. loosely seated in said slot. .-The

plate 73 has anotc'h-76 which receives a lug 7 7-ri sing from the frarne45 to prevent rela- .tlve-endwise movements of said plate 73 and said frame 45. The plate 73 is bent downward as'show'n at 78 and has fixed thereto, a

stoppiece 79 adapted to engage the stop piece 71 above-'describede It will be seen that the plate. 73 andthe frame 45 are so con nected thatthey are constrained to move together across the machine, but that, said 1' plate 73 does not move up and down with the irame 45 when said frame'rocks on its pivot.

vIt is, of course, not essential-that the plate 73 .be made of sheet metal as described, but this is a convenient manner of formin the same.

Theleft-harid arm, 48 of the extended and formed into ahandle or thumb piece 80 as shown; It will be; understood that the frame 45 may be rocked upon its pivot to raise the rack bar 43 out ofengaga' ment with its pinion 46 by depressing said thumb-piece 8 0. v

The line space mechanism comprises a ratchet wheel 81 connected to the platen at ame 45. isv

it'sright-hand end. The; peripheral face ofv which'are engagcd by aspring pressed de- The flat orend face 'of the wheel 81 has formed there-"z on ratchet teeth 84 adapted to be engaged by the line space pawl 85.- The righthand end 3 teeth. 82

loo

piece 12 of the platen framehas formed-' thereon a housing 86 havinga cylindrical 1 here constituting a bearin V 87,- to the front end of whic i is fixed the hub for .a rockshaft 88 of a lever'89 which extends toward the front of the machine andh'as its ends formed into ahandle or finger piece 90. The rock:

ing motion-of the shaft 871 is limited in'bothirections by theengagement of a pin 91 fixed to said rockshaft-with the ends of a segmental slot or notch 92 in'said housing 86; The rearwai d endofthe shaft 87 is reduced as shown and hasicoiled about it a sprin 93, one end of whichis fast tothe and the other end 'of'which projects through an opening or notchin the housing as shown. 'l'he tension of'the spring is such as to hold throck-shaft 87 normally at-the limit of its motion. ,ijn aleft-hand direction.

The line' sp'ace pawl' consists of a rod slid; ably mounted-'inf' thebOre of. a housing 94 projecting fromthehu'b 88'. T'Said bore is reduced near its outer endto form. an. annular shoulder 95 and the pawl85 is also;reduced to form an annular shoulder 96; and the end ofsuch' reduced portion is threaded as" shown at 97 for the reception of a nut 98 to limit the longitudinal movement of the pawl may be-oscil ated on its bearing.

85 in one direction in its housing. The pawl is 'pressed toward the ratchet wheel by a spring 99 coiled about the same and compressed between the shoulders 95 and 96. A pin 100 projecting from the side of the pawl 85 into a slot 101 formed in the housing 94 preventsrotation of said pawl in said housing. The end of the pawl is be veled as shown to insure proper engagement of said pawl with the which is journaled the sh aft 23 of the platen.

The plate 102 is held against axial displace ment on its journal bearing by a nut 105 threaded onto the end of the projection 103 and by an annular shoulder 105 projecting from the end piece 12. The plate 102 is'extended at 106 to form a handle by which it The end 107 of the plate 102.1ies close to and covers some of the ratchet teeth 84. Said end of the plate is formed substantially wedgeshaped as shown to provide a cam surface 108 which co-operates with the beveled end of the pawl 85 to cam the pawl out-of engagement with the ratchet teeth 84 during the movement of the pawl back, to normal position. -The plate 102 has a segmental arm 109 in one edge of which is formed a notch 110 into which extends a pin 111 fixed'to and projecting from the end piece 12 of the platen two teeth.

frame. The engagement of the pin 1.11 with the ends of the notch 110 limits the motion of the plate 102 about its bearing.

The parts are so proportioned that when the pawl 85 is operated by the lever 89 with the plate 102 in its extreme forward position shown in Fig. 7, said pawl 85 escapes from said plate 102, engages one of the ratchet teeth 84, and turns said ratchet wheel a dis tance equal to the widthiof three teeth; but when said plate 102 is in its extreme backwardj'nosition shown in Fig. 6, after leaving the'pfate 102 thepawl 85 moves only far enough to operate the ratchet wheel a distance of one tooth. If saidplate were set in.

anintermediate position, the pawl would obviously-move the ratchet wheel a distance of In order to hold the plate 102 in either of the three positions indicated, the

arm" 109 is provided with three depressions 112 and a pin 113 fixed to and projecting inward from the end piece 12 has its end rounded to engage one or theother' of said depressions 112, according to the position in which the plate 102 is set. l/Vhen the plate 102 is moved from one position to another, the arm 109. yields'su'tliciently to permit the pin 113 toescape from one depression 112 and to become lodged in another; but this requires more force than is exerted by the friction of the pawl 85 upon the cam surface 108.

The reduced end of the shaft 87 )Iojects. beyond the housing 86 and carries a hub 114 secured to said shaft by a set screw 115 threaded into said hub" and engaging said shaft. extends from said hub 114 toward the rear of the machine. The arm 50 of the frame 45 extends forward past the rod 54 as shown and has a portion 117 projecting under the eccentric 116 in position to be depressed by said eccentric when the shaft 87 is rocked by its handle 90. The position of the part 117 on the frame 45 is such that when the art 117 is moved by the eccentric 116, the eed rack 43 will be elevated to free the carriage, so that a single movement of the hand lever toward the right is effective to produce a line spacing movement of the platen,.lift the feed An eccentric lug or projection 116.

79 and 71, the carriage moves a little further,

compressing the spring 61 until the lug 51 engages the lug 55. This slight additional motion is sufficient to carry the eccentric 116 ast the frame portion 117 and to release the feed rack frame and thus permit the spring 62 to depress the same until the feed rack 43 engages the pinion 46.

In the operation of my device, the plate 102 is set by manipulation of the handle 106 to one or the other of its three positions according to the width of line spacing desired and the machine is operated in the usual manner. 'tion to begin .a new line by pressure on the handle 90 in" the direction of motion of the carriage. This results first in oscillating the shaft 87 against the tension of its spring 93 until the pin 91 engages the right-hand end of the notch 92. The pawl engages one of the ratchet teeth 84', turning the platen a distance of one, two or three ratchet teeth according to the position of the plate 102 and.

initial position until the stop 79 engages the.

stop 71 thus arresting the frame 45. Still further pressure on the handle in the same direction gives a slight additional move The carriage is returned to posi- &

ment to the carriage, freeing the frame portion 117 from theeccentric 116, thus releasing the frame 45 and permitting the rack bar '43 to re-engage its'pinion' 46. The entire.

'operation'of imparting a line space feed to the platemreleasing the rack43 froin'its pinion, returning the carriage and re-engaging the rack 43 and its pinion, is thus effected by a single motion ofthe handle 90, and this motion is produced by simple pressure on said handle in one direction.

The adjustable guard 107, covering a portion of the line space ratchet wheel, constitutes a means for regulating the line space feed which has peculiar advantages in the present combination. If the linespace feed.

were regulatedby Varying the extent of os cillation of the shafti87 it would benecessary pawl its least oscillation. xBy thepresent construeti'on,'in which the shaft-87 oscillates to its full extent at every operation thereof,

the eccentric 115 is placed clc seto the axis of the shaft, which makes a very compact ar-' "rangement.

' It-will be observed that the entire construction of my lme spacing and carriage returning mechanism is extremely simple, the

thumb-piece being anlintegral part ofthe frame 45 and the eccentric 116, wl'iichis in effect a partof the shaft 87, engaging another portion of the flame 45 directly, without any intermediate levers or mechanism whatever.

Itwill alsa be observed thatone operation of he handle 90,. consisting only in. pressing said handle to the right; results in il'nparting the'hne space movement to the platen, lntmg the letter space feed rack out of engagement with its pinion, returning'the carriage to normal position; and automatically restoring the feed rack to its normal position, and that these operations are. performed by'a very small number of moving parts.

The frame portion 1 1 7 lies directly beneath the pivotal axis of the the engagement of the eccentric 116 with i said frame portion 117 is almost identically the same whether the platen is in' lower case or'uppercase position. I

YVhat I clann 'as'new 'anddesire to secure by Letters Patent,i1s:

1. In a typewriting machine, the ,cornbinae tion of a platen. frame; a platen havinga shaft journalcd said frame; and a line space feed device comprising a rock shaft journaled in said frame and having an. env largod opening for the platen shaft;

2. The .combinationwith a platen and a carriage, of a letter spacefmecha'nism compla'ten frame, and. quite close to said axis, with the result thatprising a feed rack carried by a frame pivoted to said carriage and also movable endwise thereon; an oscillating member compris ng a carriage-returning handle andhaving a linespace pawl connected thereto; said oscillating feed rack Irame and to be disengaged theremember adapted to engage a portion of said from by relative endwise movement of said carriage and said feed rack frame; and a stop for arresting said feed rack frame.

3. The-combination withacarriage, of a said oscillating member adapted to engage a portion of said feed rack frame and to be disengaged therefrom by letter space mechanism comprising a feed rack carriedbya frame pivoted to said car-' riage and also movable endwise'thereon; an oscillating member comprising a carriage-returning handle; 80

relative endwise movement of said carriage and said feed rack frame; and a stop-for arresting said feed rack frame. I

- .4. 'Ihe combination with a platen and 'a carriage, of a letter space mechanism com prising a feed rack carried bya frame pivoted to said carnage; a memberv WhlOh oscillates about an axis that lies foreand-aft of the machine, said memb er engaging a portion of said'pivoted'frameand carrying a'line space pawl; alinespace wheel operated by said pawl; and an adjustable guard interpcsed between said wheel and pawl for controlling the engagement of said pawl with said ratchet wheel.

'5. The combination with a mo aifile carriage and a platen j ournaled therein, of a letter space feed mechanism comprising a feed rack carried by a frame pivoted to said carnage; a line space wheel connected tosald platen and having ratchet teeth on the sidev axis arranged transversely of the axis of the platen and carrying a pawl co-operating with thereof; an oscillating member having its said line space ratchet wheehsaid oscillating member also directlyengaging a portion of sald feed rack frame and' a handle connected to said oscillating member, whereby a single movement ofthe handle in the general directionof the travel of the carriage is efi ective to disengage the rack, produce a'line spacing movement ofthe platen and return the cari a .1 6. The combination with a-plaiteni and a carriage therefor, ofa letter sp ace rack pivotally mounted on said carriage; and a carriage returninghandlei and connections. operated by a pressure upon said handle inthe direction of the travel-of the carriage for imparting a line-space move'ment to said. platen, raising said-letter space rack, returning said carriage and then releasing said letter space rack,

7 In a typewriting machine having movable carriage, the combination of a platen jonrnaled in a platen frame; a rock shaft journaled in said platen frame trans- Si ned atlli o nfln the coul it of Herk in ler; and tate of New York, this 7t ary, A.'D.'1904.

versely of said platen; a carriage-returning; handle and a line space pawl that slides in a bearing connected to said rock shaft a letterspace feed rack carried by'a frame pivoted I 5 to said carriage; and aneccentric carried'by said rock shaft and directly engaging a portion of said feed rack frame. Y v

v I LOUIS "PIDIISS,

VWitnesses:

. M. K. JE NNE, A; B. RUSSELL.

day of J anu 

